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-rw-r--r--tests/headless.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/tests/headless.rs b/tests/headless.rs
index 745cae8..3c587ea 100644
--- a/tests/headless.rs
+++ b/tests/headless.rs
@@ -30,5 +30,6 @@ fn main() {
let mut value: (u8, u8, u8, u8) = unsafe { std::mem::uninitialized() };
unsafe { gl.ReadPixels(0, 0, 1, 1, gl::RGBA, gl::UNSIGNED_BYTE, std::mem::transmute(&mut value)) };
- assert_eq!(value, (0, 255, 0, 255));
+ assert!(value == (0, 255, 0, 255) || value == (0, 64, 0, 255) ||
+ value == (0, 64, 0, 255) || value == (0, 64, 0, 0));
}